IF I COULD TURN BACK TIME

This tip is just for fun, because honestly, it's not tremendously practical, but it looks pretty cool. The next time you're changing the time, using your System Preferences (found under the Apple menu) Date & Time pane, and one of your friends or co-workers is watching you, try this: Turn off the Set Date & Time Automatically checkbox, and then instead of typing in the desired time, just grab an hour or minute hand on the preview clock and move it to set your time. Again, it serves no real purpose, but every time I set my clock like this with someone looking, they're always amazed by it. Unless they're Swiss, of course.